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£441+ Cheap flights to Chicago

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
— CHI
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Flights to Chicago in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Chicago
Explore the most affordable flight options available to Chicago. Find the lowest fares based on data from user searches, with prices last updated on 9 June 2026.

Wed 7/1007:05
LHR
-
ORD
2 stops15h 05m
Scandinavian Airlines
Wed 14/1019:15
ORD
-
LHR
2 stops15h 10m
Scandinavian Airlines
Deal found 7/6£543
Wed 7/1015:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Tue 13/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 4/6£544
Thu 12/1107:05
LHR
-
ORD
2 stops15h 40m
Scandinavian Airlines
Mon 16/1119:15
ORD
-
LHR
1 stop14h 45m
Scandinavian Airlines
Deal found 7/6£544
Wed 9/921:15
LGW
-
ORD
2 stops21h 25m
TAP AIR PORTUGAL
Wed 23/918:00
ORD
-
LGW
1 stop14h 00m
TAP AIR PORTUGAL
Deal found 6/6£545
Thu 5/1106:40
LHR
-
ORD
1 stop16h 05m
Scandinavian Airlines
Mon 9/1119:15
ORD
-
LHR
2 stops17h 35m
Scandinavian Airlines
Deal found 4/6£545
Fri 4/915:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Fri 18/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Deal found 5/6£546
Wed 28/1009:15
LCY
-
ORD
1 stop13h 05m
SWISS
Wed 4/1118:50
ORD
-
LCY
1 stop12h 00m
SWISS
Deal found 7/6£546
Sat 21/1109:00
LHR
-
ORD
2 stops16h 35m
Air Canada
Sat 28/1114:00
ORD
-
LHR
2 stops15h 20m
Air Canada
Deal found 8/6£546
Wed 7/1009:15
LCY
-
ORD
1 stop12h 40m
SWISS
Wed 14/1014:20
ORD
-
LCY
1 stop12h 20m
SWISS
Deal found 8/6£546
Thu 10/918:00
LHR
-
ORD
2 stops21h 38m
Lufthansa
Thu 24/910:55
ORD
-
LHR
1 stop14h 20m
Lufthansa
Deal found 8/6£546
Sun 30/813:00
LGW
-
ORD
1 stop11h 15m
Icelandair
Thu 1/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 7/6£547
Wed 11/1113:10
LHR
-
ORD
1 stop13h 15m
American Airlines
Sat 14/1113:15
ORD
-
LHR
1 stop11h 00m
American Airlines
Deal found 4/6£547

Find flight deals to Chicago

Find the latest flights to Chicago in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 9 June 2026.

Return from

£543

One-way from

£441

Popular in

July

Cheapest in

February

Average price

£660

Good round-trip deal

£702 or less

Good one-way deal

£579 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 7/10-14/10
  • 4 total stops
  • 30h 15m total
  • London to Chicago
Search Deals
15/8
  • 15/8
  • 3 total stops
  • 32h 25m total
  • London to Chicago
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£100 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for return flights in June 2026
Search Deals
Price to beat on a round-trip flight from London to Chicago.
Search Deals
Price to beat on a one-way flight from London to Chicago.
Search Deals

Cheapflights Fare Finder

 
Locate flights to Chicago that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 9 June 2026.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 3/9

11:05-14:10

Nonstop9h 05m

Chicago O'Hare Intl

Tue 29/9

16:25-06:45

Nonstop8h 20m

£558

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 9/9

08:50-14:00

1 stop11h 10m

Chicago O'Hare Intl

Sun 13/9

21:00-10:50

Nonstop7h 50m

£559

LondonChicago

LCY - ORD

LCYORD

London City

Wed 7/10

13:45-19:15

1 stop11h 30m

Chicago O'Hare Intl

Wed 14/10

15:45-10:20

1 stop12h 35m

£563

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 9/11

15:30-17:20

1 stop31h 50m

Chicago O'Hare Intl

Sun 15/11

18:30-22:30

1 stop22h 00m

£576

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 28/8

06:20-20:05

3 stops19h 45m

Chicago O'Hare Intl

Wed 2/9

15:45-21:15

2 stops23h 30m

£576

LondonChicago

LCY - ORD

LCYORD

London City

Thu 3/12

06:50-19:24

2 stops18h 34m

Chicago O'Hare Intl

Mon 7/12

20:10-21:25

1 stop19h 15m

£588

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 20/8

21:40-19:52

2 stops28h 12m

Chicago O'Hare Intl

Tue 25/8

22:25-18:30

2 stops14h 05m

£590

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 7/9

07:15-21:25

2 stops20h 10m

Chicago O'Hare Intl

Thu 10/9

15:45-16:45

2 stops19h 00m

£612

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 6/7

08:40-12:35

1 stop33h 55m

Chicago O'Hare Intl

Mon 13/7

21:40-11:55

Nonstop8h 15m

£621

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Wed 11/11

06:30-16:50

2 stops16h 20m

Chicago Midway

Wed 18/11

13:00-08:45

1 stop13h 45m

£626

Flights are sorted by cheapest return flights first.

Deals found on 4/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6

Best time to book a flight to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Chicago

How long is the flight to Chicago?

On average, a flight from London to Chicago takes 13 hours 32 minutes. Flights to Chicago from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Chicago

The most flights from London to Chicago are scheduled on a Monday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (52 on average).

What are the most popular airlines that fly to Chicago?

The most popular airlines flying from London to Chicago are British Airways, Lufthansa and Icelandair.

British Airways
British Airways
From £412
Aer Lingus
Aer Lingus
From £343
Icelandair
Icelandair
From £204
Lufthansa
Lufthansa
From £404

What are the cheapest airlines that fly to Chicago?

The cheapest airlines flying from London to Chicago are Virgin Atlantic, Icelandair and Aer Lingus.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

When is the best time to book a flight to Chicago?

The best time to book flights to Chicago is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated 9 June 2026.
Read through reviews of airlines serving the United States, such as United Airlines,Aer Lingus, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,801 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,801 reviews
United Airlines
7.4
Good
9,801 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Aer Lingus
7.3
Good
1,599 reviews
United Airlines
7.4
Good
9,801 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Icelandair
7.0
Good
670 reviews
United Airlines
7.4
Good
9,801 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Lufthansa
6.8
Okay
8,052 reviews
United Airlines
7.4
Good
9,801 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
British Airways
6.7
Okay
8,035 reviews
United Airlines
7.4
Good
9,801 reviews
Check prices

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

FAQs about flying to Chicago

  • Can I find cheaper flights to Chicago if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Chicago on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Chicago?

    Based on reviews from Cheapflights users, Ryanair is rated the highest out of the airlines that fly to Chicago.

  • What is the cheapest airport to fly to in Chicago?

    Chicago O'Hare Intl is currently the cheapest airport to fly to in Chicago. One-way flights to Chicago O'Hare Intl typically cost £43, while return flights cost around £145.

  • How much is a return flight to Chicago?

    A return flight to Chicago will typically cost around £148, however they can be found for as little as £147.

  • Where does the fastest flight to Chicago depart from?

    For those looking to save time traveling to Chicago, Edinburgh Turnhouse offers the quickest one-way flight (8 hours 30 minutes).

  • Does Chicago O'Hare Intl have car hire?

    Yes. Those touching down at Chicago O'Hare Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Chicago O'Hare Intl?

    Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 mi away from Chicago O'Hare Intl).

See more FAQs

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